Sole-leveling machine.



A. EPPLER.

SOLE LEVELING MACHINE.

APPLICATION FILED DEC. 7, 1910.

' 1,165,768. I Patented Bea-28,1915.

3 SHEETS-SHEET I.

WITNESSES INVENTOR Q? may;

f W aw 9 W COLUMBIA v! ANnnnAPH conwasnmumN. n. c.

A. EPPLERi .SOLE LEVELING MACHINE.

APPLICATION FILED 0501,1910.

1,165,768; Patented Dec.28,1915.

3 SHEETS-SHEET 2.

WITNESSES J4 M INVENTQR i Q X 4a d? COLUMBIA PLANOGRAPH c0, WASHINGTON, n. c.

A. EPPLEB.

SOLE LEVELING MACHINE.

APPLICATION FILED one. 1. 1910.

3 SHEETS-SHEET 3' Patented Dec. 28, 1915.

WITNESSEZ/b J STATES I ANDREW EPPLER, or LYNN, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, or PATERSON, NEW JERSEY, A CORPORATION-'01?" NEW JERSEY.

SOLE-LEVELING MACHINE.

. Be'it known that'I, ANDREW EPPLER, a

" citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Sole-Leveling Machines; and I do hereby declare the following to be a. full, clear, and exact description of the invention, such as Will enable others skilled in the art to Which it appertains to make and use the same.

. The present invention relates to sole level.-

ing machines and more particularly to machines of this type which comprise a shoe supporting jack and a cooperating sole leveling device movable tochange the relative longitudinal position of the leveling device and jack. i

The object of the, present invention is to provide certain improvements in a machine of this type which cause the proper leveling action to be exerted over all portions of the shoe sole acted upon by the leveling device, and Which impart a better finished appearance to the sole.

With this object in view the several features of the invention consist in certain novel features of construction, combinations 7 i and. arrangements of parts hereinafter de- '30 scribed and claimed, the advantages of which Will be obvious to those skilled in the art from the" following description.

Inthe accompanying drawings illustrating the preferred form of the invention, Figure 1 represents a side elevation of the improved leveling inachine; Fig. 2 is a top plan View of the leveling machine; Fig. 3 is a side elevation of the leveling machine with the shoe supporting ack and driving mechanism' therefor removed; Fig. 4 is a sectional elevation taken upon the line l1, of

' Fig. 1; Fig. 5 is a detail showing the leveling roll With the friction device applied thereto; Fig. 6 is a section upon the line 6' 6, of Fig. 5; Fig. 7 is a detail illustrating the mechanism for obtaining an increased 7 pressure ofthe leveling roll upon the shank 'portionof the sole.

In the illustrated embodiment of the invention, the leveling roll 1 is jou'rnaled in theforwardend of a frame 2Which is pivotally mounted at'its rear end upon the upper rear portion of the machine frame l.

Specification of Letters Patent.

under tension at all times;

Patented Dec. 28,1915.

Application filed December 7, 1910. Serial No. 596,067;

The leveling roll 1 is vibrated an 'eccentric5 Which is connected to'the'shaftj 6, or; the leveling roll througha pair of'connecting rods 7 which are connected at their outer.

connecting rods 7. The eccentric 5'is mounted upon a counter shaft 11' which is driven by a pulley 12 and belt 12 from apulley 13- mounted upon the main'drive shaft 3. of the machine. I

The shoe is oscillated. mechanically beneath the leveling roll and at the same time is manually tipped by the operator to-properly level the edges of the sole. The operat ing mechanism for oscillating the shoe supporting ]21Cl comprises means for reversing the travel of the jack at the will of the operator and means for automatically stopping the movement of the jack in either direction When certain predetermined limits of movement are reached, as for example, when the leveling roll in its rearward movement reaches the front portion of the heel seat. The shoe supporting jack and operating mechanism are substantially the same. as shown in the co-pending application of the applicant, Serial No. 315,024, filed May 3,

1906, and this construction isflonlyi briefly described herein in consequence thereof.

portion thereof. These pulleys are located adjacent to the periphery of the large friction pulley 21 and diametrically opposite to one another. The pulleys; 19 and; 20 are driven by a belt 22 from the drive pulley 23 mounted upon the main, drive shaft of" the machine. An idler 24 is provided about 1 Which the belt passes in order tokeep'Iit- 1105, Friction disks and the friction pulley 21 is driven from frame 18 is conveniently moved by the operator through a handlever 'pivotally either of these disks as the frame 18 is-swun'g to bring either disk into engagement with the surface of thevfriction pulley. Move:

ment is transmitted to the frame 15 upon rotation of the pulley 21, through the gears 27 and 27, the crank disk 60 and link 17 connecting the disk and jack frame; The

mounted upon the shaft 16 journaled in the machine frame and connected to the frame 181by a link 26. a Upon the release of the hand lever the frame is returned to alneuosition by the springs 77 which surj aga nst theperiphery of a cam 58 mounte tral roun fa rod 78 fastened toith 'e frame 18,

thQb'I' O d passingthrougha hollow lug 79; mountedin the machine frame andagainst plppositesidesof which'the springs7 7 bear.

0" prevent an overthrow of the j ack supporting frame and to "throw the friction 1 driving; mechanism outof operation when supportingframe reaches its limit of movement in either direction, the gear the jac 27 is 1 provided "at diametrically opposite points with adjustable pins 28 and 29, which pins areiarranged toengage an arm 30 pivotally' mounted'upon the shaft 16. s The arm 3Qis connectedwith the frame 18 throughlinks 31'and .32 and springs '33 in order to prevent a shock upon stopping the movement ofthe jack. 7

The frame 2, in which the leveling roll,

is mountedyis counterbalanced by a s ring 35 which connects the rear end of the rame at 36 with-the rear portion "of v the machine frame 4; The levelingrollis pressed, down upon the sole of the shoe by a compression spring 38 which bearsagainst a holloW'cas ing 39iat'itsupperendand' a disk 40 threadedly connected to the 'rod 41 at its lower end, the rod 41 being connected to the frame 2 through a "coupling 42.1 A stop is provided forlimiting the. downward movement of theframeQ comprlsing a member in .the stem'45, which is arranged to be rotated through the gears46 and"47,'the worm 48 and wormf wheel49, and thehand wheel50. A pin'51 is. provided for fasten ing' the gear .46 tothe stem 45, but may be removed to;- allow the-gear to rotate freely upon the stem. The purpose of .this'arrangement isf'to enable the stop; to be ad justed andto simultaneously increase or decrease Zthetension off the spring 38 as clearly illustrated and described in thepatent to. Rigby, No.I925,50 9, dated June 22, 1909.

It isdesired; to move.- the stop member 44oi1t of the wayduring the leveling operation order that'the leveling roll may be pressed down by the spring 38 into the shank portion of the sole without the stop members 43 and engaging with onexanother. This is accomplishedby providing a toggle 52, which is fastened to the lower wardly. A link 55 connects the middle por-f tion of the toggle and the upperfendflof a lever 56 which is pivoted centrally upon the machine frame and carries a cam roll 57 upon its lower end, the cam roll bearin upon acam shaft 58, The cam 58 is provided with a cam projection 59, adjustably fastened to its periphery and which isarranged to contact with thecam roll 57 and straighten the toggle in orderto maintain the leveling roll in a raisedfposition when the roll is out of engagement with the shoe. 'The leveling roll is held in this position until the shoe is again moved into engage ment with it, when the cam roll 57 again rides off the cam projection 59, allowing the toggle 52 to be broken by the spring 53,

"areknown as cottage shanks, itis particularly diflicult to properly levelthe shank,

and in such cases it is deemed advisableto increase the pressure of the leveling roll upon the sole atthe shank. In the present invention, the machine is enabled to operate at the best efficiency upon varying styles of shoes by mechanism which is connected 1 to 1 the roll to increase the pressure upon the shank and which has provision'for an adjustment to vary the application of the pressure. It is preferred to accomplish this re sult by providing a cam diskL60 mounted upon the shaft 58, the cam disk being pro-.

vided with a circumferentially adjustable projection or cam rib 61 adapted to engage with a camroll 62, j ournaled upon the middle portion of the lever-'63 which is pivoted in the machine frame at 64 and connected at 1 its free end to the lower portion of the cas 111g 39. It can readily be seen that when the projection 61 engages with the cam'roll 6:2,

Ithas beer found desirable in operating upon'certain classes of welt shoes to have the leveling roll exert a rubbing action upon the sole, "which imparts a more finished appearance to; the sole and gives'it a slight burnish. In the 1 present invention, this is accomplished'by frictionally retarding the free rotation of the roll in order tocauseit to slide over the surfaceof "the sole. Mea s are also provided underthe control ofthe operator for varying the retardation of the roll in or- I der'to adapt the machine for successful operation upon various classes of work in which difierent degrees of rubbing action are required. o this end, a friction device is provided comprising abrake 65 which is lined with any preferred form of friction ',material 66, and'ispreSsed. downwardly against the upper portion of the roll by a spring 67 surrounding-a rod 68, which prok jects upwardly from the'brake into the hub of a hand wheel 69; J The hand wheel 69 has its' hub threadedly mounted in abridge piece FO and a rotation of the hand wheel willincreaseor diminish the pressure of the sprin'g'67upon the'brake 65. The bridge piece 70 has its threaded portion split and clamped together by the bolt 71 in order to retain thehand wheel 69 in any adjusted position. In. orderthat the brake 65 shall move with the leveling roll, the bridge piece issupportjedupon a pair of arms 72 projecting upwardlyfrom the. slide bearings 10.

This-desirable that the operator, at certain times during the leveling operation be able to'raise the leveling roll from the sole of the shoe inorderto either examine the shoe or to decrease the pressure upon that portion of the sole. To enable the leveling roll to .be raised the rear end ofthe frame 2 is connected with a treadle 78 by the connecting Y rods Hand 75, the connecting rods being fastened at their point of connection to an arm 7 6 pivoted upon the rod 77 A spring 7 8 is provided which connects the treadle 7 3 with the frame of the machine and tends to raise the'treadle and allow the leveling roll a toreturn to its normal position.

The operation of the improved machine is substantially as follows: The shoe to be leveled is first jacked in the usual manner and the starting handle is then manipulated to oscillatethe jack and cause the leveling roll to traverseover the shoe sole. As the roll and jack are moved to change the rela- I tive longitudinal position of the shoe and cross section to the sole.

jack, the jack is tipped laterally bv the operator to impart the desired curvature in The hand wheel 69 in the meantime has been adjusted to secure the proper frictional contact between the brake androll and enable the roll to exert the proper rubbing action upon the shoe bottom. This rubbing action depends uponfitwo factors; first the friction between the brake and roll, and se'condfth' fficti between the roll and the surface of the sole.

It is obvious that the friction between the roll and the surface of the sole will depend both upon the nature and character of the sole and the pressure of the roll thereon, and the amount of retardation of the roll may, be varied by changing the pressureof the roll upon the workwithout altering the adjustment of the friction brake. Thus with a fixed adjustment of the brake, the'roll may exert both a rubbing and rolling action upon the sole.

The nature and scope of the present invention'having vbeen indicated, and a machine embodying the various features thereof in their preferred form having been specifically described, what isclaimed is 1'. A leveling machine, having, in 'combi- I nation, a leveling roll, a shoe supporting ack, means for changing the relative longitudinal position of the roll'and ack to cause the roll to traverse over the shank and" 3 ball portion of the shoe bottom and pass on and means for positively moving the stop into an operative position to support the roll in passing on to and off of the shoe and for "removing the stop to allow the.

roll to follow; the contourv of the sole during the entire leveling operation, substantially as described.

a to and off of the toe of the shoe, a stop,

2; A leveling machine, having, in combi for the leveling roll, a movable jack for supporting a boot or shoe, a vertically movable stop for the supporting frame, a toggle connected to the lower portion of the stop, a spring normally tending to break the toggle and depress the stop, a rotary cam,

- nation, a leveling roll, a supporting-frame and connections between the cam and toggle the stop, substantially asdescribed.

adapted to straighten the toggle and raise a 3. A leveling machine, having, in combi nation, a shoe supporting jack, a levelingroll arrangedto be rotated by frictional.

contact with the sole as the roll passes thereover, and friction means for retarding the rotation of the roll, substantially as de-.

scribed. 1

4. A leveling machine, h'avin in combination, a leveling roll, a jack or supporting a boot or shoe, means for changing the relative longitudinal-position of the roll and jack, the leveling roll adapted-to be rotated by frictional contact with the sole as the roll passes thereover, and means acting to partially retard the rotation ofthe roll to exert a rubbing action upon the sole, subtstantiallyasdescribed.J g r 5. A levelin 'I'n chine, having, in combination, a leveling roll, means for vibrating the levelin roll, a movable jack for sup ,portin a; oo'tor shoe, means for moving the jac ,1 the leveling rolladapted to be rota'ted by frictional contact with" the sole of b the boot a or shoe as the roll passes thereover, and a friction device vibratin with the roll and adapted tobearupon't 'e rolland retarditsrotation toexert a rubbing action .means forvarying the meant which the froll is retarded, substantiallv as described.

friction brake upont l nation, iii-l 3 a movable jack '(QA levelin machine, having, in combi nation, a le: emgrollya movable jack for supporting a boot or shoe; a friction brake yield'ably pressed againstthe surface of the roll to exert a rubbing actioniupon thesole;

and means for varyin the pressure of the as: described. 7 I v '8." leveling machine having, in combisupporting a boot orshoe', slide bearings in "which the rollis journaled, and a friction brake supportedbythe slide bearings and it yieldably pressed against the surface of the 'roll, substantially as described.-

-9.A leveling machine having, II IT COIlflbIlshoe supporting jack, means for r'etarding *the rotation of the roll toexert a rubbing 'Ooples cum; patent may be obtained for f action upon the sole, and means under the stantially asdescribed. a b having, in c i- A jack, means i for changing e roll, substantially b b b p b described. nation,.a 'level ng roll arranged to be roi tated by frictional contact'with; the sole, a

five cents each, by addressing Washington, D. 0}

control of the operator for varying the retardation of the roll; substantially as dea a a machine having, in combir, nat1on,f aleveling roll, means for vibrating scribed. 10. A leveling the roll, a shoe supportingjack, meansfor changing the relative lon itudinal position of the roll and jack, and" riction means for retarding the free rotation ofIthe roll to exert a rubbing action upon the sole, sub- 11 level'ng machine nation, a leveling device, a shoe supporting ,the relative long eveling device and tudinal position of the jack, and mechanism for causing the leveling device to exert a rubbing action When 60 action when the pressure upon the sole is b pressed lightly upon the sole and a rolling increased, substantially as described.

12. A leveling machinehaving, in combi-;

nation, a leveling device, a shoe supporting jack, means forichanging the relzitivelongi:

tudinal position of the leveling device and a jack, a treadle, and mechanism acting in conjunction with the treadle to cause the leveling device to exert either a rubbing or a rolling action upon the sole, substant ally as descrlbed.

13. A levelin machine com risinga roll,

a supporting rame in whic the roll is journaled, a friction padlslidingly mounted in the frame and engaging withthe periphcry of the roll,and a spring bearing against the pad to yieldingly maintain it in en} gagement the Commissioner 0! Patents,

with the roll, substantially as i 

